Andrew ferrari



(No Model.) I

A. FERRARI. GLASS FINISHING FURNACE.

I I I I I W I. "M w mu 7 I WITNESSES: [NVENTORI @950. 93%. WW 83m UNiTEn STATES ATENT DFFICE.

ANDRENV FERRARI, OF GLASSBOROUGH, NEW JERSEY, ASSIGNOR TO THE RVHITNEY GLASS WORKS, OF SAME PLACE.

GLASS-FINISHING FURNACE.

SPECIFICATION forming part of Letters Patent No. 432,796, dated July 22, 1890.

Application filed March 31, 1888. Serial No. 269,136. (No model.)

To a whom it may concern:

Be it known that I, ANDREW FERRARI, a subject of the Emperor of Germany, residing at Glassborough, in the county of Gloucester, State of New Jersey, have invented a new and useful Improvement in Glass-Finishing Furnaces, which improvement is fully set :forth in the following specification and accompanying drawings.

My invention consists in a glass-finishing furnace provided with means whereby an intense heat may be generated therein, the same being comparatively smokeless, and there be ing a saving of fuel and simplicity of construction, as will be hereinafter more fully set forth.

The two figures representvertical sections at a right angle to each other of a glass-furnace embodying my invention.

Referring to the drawings, A represents a glass-furnace, the same being closed on all sides excepting at the place of occupation of the glory-holes 13 and the opening for the entrance of the inject-or C, the latter consisting of an oil-conveying pipe D and an air-.conveying pipe E, the discharge end of said pipe D being within the pipe E at or near the dis charge end thereof and of less diameter than the opening of the said pipe E.

F represents a tank or reservoir for hydrocarbon fluid or other suitable inflammable or vaporizable oil,'which is so located that its contents may be directed intoa funnel or inlet end D of the pipe D.

The lower part of the furnace, where the air-conveying pipe E enters, is formed with a combining-chamber or fire-pot H under and communicating with the furnace proper and having converging side walls J to reduce the opening between said furnace proper and the said combining-chamber or fire-pot to thereby concentrate the flame and in a measure accelcrate the blast.

The opening in the furnace A whereby the injector O enters the same is lined by a sleeve G, which also incloses portions of the pipe E, so that a comparatively tight joint is produced between the wall of the furnace and said pipe E, thus preventing the admission of air at said joint, the sleeve also serving to sustain the injector in position. The walls of the glory-ho1es B converge toward the outer edge thereof, so that the heat'in its passage from the combustion-chamber concentrates on the glass article which is placed at said glory-hole. (See dotted lines, Fig. 2.)

The operation is as follows: Air under pressure or in a blast, heated or not, as desired, is admitted into the pipe E. Oil is supplied to the pipe D, and as it leaves said pipe it is acted upon by the incoming air of the pipe E and vaporized, the vapors then entering .the combining-chamber at the bottom of the furnace, where the combined vapor is ignited, it then entering the combustionchamher and becoming serviceable at the gloryholes B.

It will be seen that the flame produced has all the advantages of one subjected to a blowpipe, with the additional advantages that the heat is intensified, completely fills the upper or combustion chamber, is comparatively smokeless, and causes great saving in fuel. The furnace is also of simple and inexpensive construction and maybe of less size than heretofore in use.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A'glass-furnace having a combustion chamber closed at top and provided with outwardly-converging side openings, at tire-pot directly under said chamber having inwardlyconverging side walls, and an oil-pipe leading into the base of the fire-pot and provided with an inlet at its opposite end, substantially as described.

2. A glass-furnace having a combustionchamber closed at top and provided with outwardly-converging side openings, a fire-pot directly under said chamber having inwardlyconverging side Walls, and an oil-pipe leading into the base thereof, with an inlet at its opposite end, an air-pipe surrounding said oil-pipe, and a sleeve secured in. the walls of the fire-pot and surrounding said air-pipe, said parts being combined substantially as described.

ANDREW FERRARI.

Witnesses: 7

JOHN A. VVIEDERSHEIM, A. P. JENNINGS. 

